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Forum: Service Manuals, Requests, Repair Tips

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  1. Sticky Thread Sticky: READ BEFORE YOU POST - do not post e-books, ieee papers here

    Started by pranam77, 29th August 2009 08:34
    • Replies: 0
    • Views: 22,121
    pranam77
    29th August 2009, 08:34 Go to last post

  1. USB to RS232 exactly similar to COM1

    Started by steve_rb, Today 15:18
    • Replies: 1
    • Views: 57
    KlausST
    Today, 17:20 Go to last post

  2. HP 54520A Blown Fuse Problem

    Started by neazoi, 7th January 2019 12:22
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 37
    • Views: 1,994
    neazoi
    Yesterday, 20:38 Go to last post

  3. Identify an electronic component

    Started by mybestkatkout, 9th October 2019 10:12
    3 Attachment(s)
    • Replies: 6
    • Views: 746
    SunnySkyguy
    10th October 2019, 18:02 Go to last post

  4. [Req] Sortware for chinese XiQue model xq-111 two way radio

    Started by peyabu, 8th October 2019 01:56
    • Replies: 0
    • Views: 221
    peyabu
    8th October 2019, 01:56 Go to last post

  5. [SOLVED] Looking for Connector Type?

    Started by hanzhong, 25th September 2019 11:42
    3 Attachment(s)
    • Replies: 3
    • Views: 440
    hanzhong
    7th October 2019, 04:48 Go to last post

  6. Help with wires names

    Started by Steven12345, 29th September 2019 01:42
    1 Attachment(s)
    • Replies: 1
    • Views: 596
    wwfeldman
    29th September 2019, 03:57 Go to last post

  7. Can anyone ID this sm diode

    Started by unwantedsn, 25th September 2019 15:37
    1 Attachment(s)
    • Replies: 0
    • Views: 194
    unwantedsn
    25th September 2019, 15:37 Go to last post

  8. ISO 6141, 6142 and 6143 ?

    Started by steve_rb, 22nd September 2019 11:12
    • Replies: 1
    • Views: 300
    FvM
    22nd September 2019, 21:38 Go to last post

  9. Casio F91W circuit diagram

    Started by bodzio_stawski, 22nd September 2019 15:56
    • Replies: 0
    • Views: 209
    bodzio_stawski
    22nd September 2019, 15:56 Go to last post

  10. Replacement for AD848JR

    Started by steve_rb, 21st September 2019 10:21
    • Replies: 3
    • Views: 305
    FvM
    22nd September 2019, 14:34 Go to last post

  11. Beckman Industrial 9020 - Poor focus with no adjustment

    Started by Affy420, 17th September 2019 23:25
    • Replies: 6
    • Views: 494
    Affy420
    21st September 2019, 14:07 Go to last post

  12. please help to identify component with marking BEQX with Japanese writing.

    Started by debugtimog, 12th September 2019 06:42
    5 Attachment(s)
    • Replies: 3
    • Views: 501
    ZASto
    16th September 2019, 12:33 Go to last post

  13. Microtek 3KVa inverter

    Started by Mlungu, 15th September 2019 11:42
    1 Attachment(s)
    • Replies: 0
    • Views: 187
    Mlungu
    15th September 2019, 11:42 Go to last post

  14. 24VDC Single LED Flasher Circuit

    Started by imranahmed, 11th September 2019 11:28
    1 Attachment(s)
    • Replies: 5
    • Views: 536
    schmitt trigger
    12th September 2019, 13:59 Go to last post

  15. Lamp Test Circuit with some other indications.

    Started by imranahmed, 7th September 2019 23:46
    2 Attachment(s)
    • Replies: 15
    • Views: 1,237
    barry
    11th September 2019, 21:37 Go to last post

  16. Shunt in DC ammeter circuit

    Started by imranahmed, 9th September 2019 20:48
    4 Attachment(s)
    • Replies: 7
    • Views: 568
    imranahmed
    11th September 2019, 11:22 Go to last post

  17. Halogen Lamp Limit Resistor?

    Started by i200yrs, 7th August 2019 09:29
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 20
    • Views: 1,757
    i200yrs
    4th September 2019, 09:08 Go to last post

  18. SmartScope ZIP 250 Z-axis

    Started by Veketti, 21st August 2019 19:08
    3 Attachment(s)
    • Replies: 2
    • Views: 879
    Veketti
    1st September 2019, 11:39 Go to last post

  19. [SOLVED] Identify Replacement Capacitor

    Started by CER8ERU5, 26th August 2019 12:23
    1 Attachment(s)
    • Replies: 3
    • Views: 680
    betwixt
    26th August 2019, 16:23 Go to last post

  20. Extend life of UV lamp.

    Started by i200yrs, 26th August 2019 05:07
    • Replies: 4
    • Views: 396
    ZASto
    26th August 2019, 14:04 Go to last post

  21. Electronic Load Circuit for 380 Vdc (2A to 3A) Power Supply

    Started by i200yrs, 22nd August 2019 04:56
    • Replies: 6
    • Views: 562
    i200yrs
    26th August 2019, 05:05 Go to last post

  22. IFC TG179 TO-92 (transistor)

    Started by i200yrs, 29th July 2019 07:44
    3 Attachment(s)
    • Replies: 5
    • Views: 850
    i200yrs
    26th August 2019, 05:00 Go to last post

  23. 450w ATX smps switching voltage low

    Started by dey4su, 21st August 2019 10:23
    • Replies: 8
    • Views: 808
    dey4su
    25th August 2019, 20:45 Go to last post

  24. How to fix Coax Cable of Vector Network Analyzer?

    Started by swadesh07, 23rd August 2019 20:44
    • Replies: 1
    • Views: 271
    BigBoss
    23rd August 2019, 21:50 Go to last post

  25. TTL to USB converter : RS232 to TRS

    Started by BobSan, 27th July 2019 18:02
    6 Attachment(s)
    • Replies: 8
    • Views: 878
    BobSan
    20th August 2019, 14:35 Go to last post

  26. Panel Mount NVIS LED Vendors name for Aerospace Application

    Started by AzharElectronics, 19th August 2019 16:24
    • Replies: 0
    • Views: 190
    AzharElectronics
    19th August 2019, 16:24 Go to last post

  27. How to build overcurrent/overvoltage protection

    Started by nurhidayah, 16th August 2019 10:18
    1 Attachment(s)
    • Replies: 1
    • Views: 398
    barry
    16th August 2019, 17:16 Go to last post

  28. Barudan BEDT - ZQ-501 Single Head - 8720 Control PCB

    Started by ServiceONE, 16th August 2019 02:45
    • Replies: 0
    • Views: 239
    ServiceONE
    16th August 2019, 02:45 Go to last post

  29. N7j3a marking transistor

    Started by hosseinhomerehe, 28th July 2019 05:53
    4 Attachment(s)
    • Replies: 6
    • Views: 1,051
    std_match
    14th August 2019, 09:50 Go to last post

  30. What Component is this

    Started by tdsflanked, 9th August 2019 13:15
    3 Attachment(s)
    • Replies: 1
    • Views: 415
    FvM
    9th August 2019, 16:41 Go to last post
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